Red Bull Music has put together an amazing new documentary about the evolution of Hip-Hop radio in the 80s. Titled Revolutions On Air: The Golden Era of New York Radio 1980 – 1988, the short film serves as an in-depth look at some of the key personalities responsible for bringing Hip-Hop to the air waves, and how they evolved the sound of the music.

Narrated by MC Lyte, Revolutions features many of the key stakeholders during the era, including Kool DJ Red Alert, Marley Marl, Tony Humphries and more. It also involves several DJs influenced by the sounds emanating from boom boxes during the period, such as Stretch Armstrong and DJ Spinna.

The film chronicles several key movements, including the role Frankie Crocker played as the first DJ to spin Hip-Hop on a major market radio station, Mr. Magic’s ascent to becoming “the go-to personality for Hip-Hop,” Marley Marl and Red Alert’s pivotal affiliation with crews like The Juice Crew and Boogie Down Productions, respectively, and more.

The documentary also is not limited to Hip-Hop, stressing the importance of other genres like House Music, and even Punk, in the evolution of the sonic landscape. Take a look at this vital slice of music history.

Related: Funkmaster Flex, DJ Red Alert & Chuck Chillout Hit Airwaves With 5 Hours Of Master-Mixes (Audio)